The ultimate goal of the entire creation is Unity: This ultimate goal is entirely good. For oneness – unity – is entirely good.
Whatever evil and suffering you endure, G-d forbid, if you just look at the ultimate goal – God’s purpose – you will not experience it as suffering at all.
The pain that people endure when they suffer is only because they cannot focus on the ultimate purpose, which is entirely good. It is then that they feel the pain and sorrow of their suffering.
But when understanding is present and one keeps one’s attention on the ultimate goal, one feels no pain and suffering at all.
Avraham Greenbaum, The Essential Rabbi Nachman